The organic dog food I feed my small dogs is the Purina Beyond small dog food which is organic.
I buy it at Chewy.com where I buy all my dogs food at and although it's a bit expensive the dogs like it much better than non organic dog food and it's healthier for them as well.
Some other organic dog foods for small dogs are the dog foods PetGuard Vegan Entree, Castor and Pullox Organix dog food.
A good canned Organic dog food for small dogs is Newman's Own Organics dog food.
Blue Buffalo and Diamond naturals dog food is also good for small dogs.
I like to feed my small dogs some dry dog food in the morning and in the evening I feed them some of the Newman's Own Organics canned dog food.